No, another mobility nerf will kill drogoz, (my bad, it will kill the entire game) he is fat in the air, he is extremely easy to counter because we have many hitscans and drogoz hitbox is a joke. If you really want to balance it, buff everyone's mobility, or at least flankers one.
Less burst, more mobility, so every flanker would be able to reach drogoz midair but only skilled ones could kill him, flankers should be high risk high reward classes. Right now flankers just spam OP burst like damage dealers, (they can still counter drogoz ofc, only terminus, barik and nando can't counter him lol)
Another way to balance wyrm without nerfing it is by REDUCING DROGOZ'S PROJECTILE SPEED... it is way to high for a blaster that stays in the air everytime, I've never seen fast rockets like drogoz ones. Nerf it, improve flankers and we will be ok :P